Invention Grant
US07882512B2 Automatic balancing apparatus, rotating apparatus, disc drive apparatus, balancer, and housing
失效
自动平衡装置，旋转装置，盘驱动装置，平衡器和壳体
- Patent Title: Automatic balancing apparatus, rotating apparatus, disc drive apparatus, balancer, and housing
- Patent Title (中): 自动平衡装置，旋转装置，盘驱动装置，平衡器和壳体
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Application No.: US11876911Application Date: 2007-10-23
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Publication No.: US07882512B2Publication Date: 2011-02-01
- Inventor: Rikuhiro Hanai , Takashi Mochida , Yuji Shishido
- Applicant: Rikuhiro Hanai , Takashi Mochida , Yuji Shishido
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: SNR Denton US LLP
- Priority: JP2006-288375 20061024
- Main IPC: G11B19/20
- IPC: G11B19/20
Abstract:
An automatic balancing apparatus is disclosed. The automatic balancing apparatus includes a housing, magnetic fluid, and a plurality of balancers. The housing is rotatable. The magnetic fluid is contained in the housing. Each of the plurality of balancers is movable in the housing and has a magnet and a yoke which is mounted thereto and which has a raised portion or a depressed portion formed on an inner circumferential side of a rotation of the housing.
Public/Granted literature
- US20080095022A1 AUTOMATIC BALANCING APPARATUS, ROTATING APPARATUS, DISC DRIVE APPARATUS, BALANCER, AND HOUSING Public/Granted day:2008-04-24
Information query
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